10 Best Cordless Angle Grinders 2025 in the United States

The Milwaukee 2880-20 M18 FUEL Cordless Angle Grinder is a well-rounded tool designed for various grinding tasks, making it a solid choice for both DIY enthusiasts and professionals. With its brushless motor, this grinder offers an impressive no-load speed of up to 8,500 RPM, ensuring efficiency in cutting and grinding applications. It operates on an 18V battery, which is compatible with all M18 batteries, providing flexibility for users who already own Milwaukee tools.

One of the standout features is the Electronic Clutch that protects against kickback, enhancing user safety during operation. Additionally, it includes overload protection to extend the motor's life, making it a reliable investment over time. The anti-vibration side handle is another plus, contributing to user comfort, especially during prolonged use.

However, there are a couple of considerations. The grinder is sold as a tool only, meaning you will need to purchase the battery separately if you don’t already have one. This can add to the initial cost for new users. Also, while it is relatively lightweight at around 5 pounds, some users may still find it a bit bulky for extended overhead work. In terms of ergonomics, its compact design helps, but users looking for a more maneuverable option may want to try out other models. The 5-year warranty is a reassuring factor, indicating Milwaukee's confidence in the product's durability.

The Milwaukee M18 FUEL 18-Volt Lithium-Ion Brushless Cordless Grinder is a powerful tool that generates 11A corded power, making it ideal for heavy-duty applications. With an 18-volt battery and a brushless motor, it offers efficient performance and longer life. The grinder's low profile, flathead design is particularly beneficial for accessing tight spaces where traditional grinders may not fit. Its RAPIDSTOP brake is a notable safety feature, stopping most wheels in less than 2 seconds, enhancing user safety during operation.

Weighing just 1.2 pounds, it is lightweight, reducing user fatigue and making it easier to handle for extended periods. However, the tool is sold as 'tool-only,' meaning the battery is not included, which could be an additional cost for users who do not already own compatible batteries. The maximum rotational speed of 8500 RPM is suitable for various grinding tasks, but may not be the highest available in the market.

The ergonomics of the paddle switch and the no-lock design add convenience and control, although some users may prefer a locking feature for continuous operation. This tool would be particularly beneficial for professionals and DIY enthusiasts who need a compact, powerful grinder for challenging projects.

The MILWAUKEE M18 FUEL 18-Volt Brushless Cordless Angle Grinder is a solid choice for those needing a powerful and portable grinding tool. It runs on an 18-volt battery (battery not included), which is a common and reliable voltage for this type of tool, offering a good balance between power and runtime. The grinder supports 4-1/2 inch and 6 inch discs, providing versatility for different grinding and cutting tasks.

Its brushless motor is a significant advantage, as it tends to be more efficient, runs cooler, and lasts longer compared to brushed motors. The grinder reaches a no-load speed of around 9000 RPM, which is sufficient for most metal and masonry jobs requiring smooth and fast cutting or grinding. Weighing about 6.5 pounds, it’s on the heavier side for cordless grinders, so extended use might cause some arm fatigue, especially without additional ergonomic features mentioned.

Safety-wise, it comes with a paddle switch, which can help prevent accidental starts. Its design combines metal and plastic parts, aiming for durability without making the tool too bulky. This grinder is well suited for professionals and serious DIYers who need a cordless option that delivers strong performance and durability. Buyers should be ready to invest in a compatible Milwaukee 18V battery and charger separately, and consider the weight if planning to use the tool for long periods. With a brushless motor and flexibility with disc sizes, this tool stands out among cordless angle grinders.